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/*
* Copyright © 2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef IRIS_SCREEN_H
#define IRIS_SCREEN_H
#include "pipe/p_screen.h"
#include "state_tracker/drm_driver.h"
#include "util/slab.h"
#include "util/u_screen.h"
#include "intel/dev/gen_device_info.h"
#include "intel/isl/isl.h"
#include "iris_bufmgr.h"
struct iris_bo;
#define READ_ONCE(x) (*(volatile __typeof__(x) *)&(x))
#define WRITE_ONCE(x, v) *(volatile __typeof__(x) *)&(x) = (v)
#define IRIS_MAX_TEXTURE_SAMPLERS 32
#define IRIS_MAX_SOL_BUFFERS 4
#define IRIS_MAP_BUFFER_ALIGNMENT 64
struct iris_screen {
struct pipe_screen base;
/** Global slab allocator for iris_transfer_map objects */
struct slab_parent_pool transfer_pool;
/** drm device file descriptor */
int fd;
/** PCI ID for our GPU device */
int pci_id;
/** Global program_string_id counter (see get_program_string_id()) */
unsigned program_id;
/** Precompile shaders at link time? (Can be disabled for debugging.) */
bool precompile;
unsigned subslice_total;
struct gen_device_info devinfo;
struct isl_device isl_dev;
struct iris_bufmgr *bufmgr;
struct brw_compiler *compiler;
/**
* A buffer containing nothing useful, for hardware workarounds that
* require scratch writes or reads from some unimportant memory.
*/
struct iris_bo *workaround_bo;
};
struct pipe_screen *iris_screen_create(int fd);
boolean
iris_is_format_supported(struct pipe_screen *pscreen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned sample_count,
unsigned storage_sample_count,
unsigned usage);
#endif
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